It led to the collection of several complete data sets.
I hope this helps :)
Answer:
Probably medicine, although not sure.
Explanation:
Accidents and diseases and injuries and other medical related problems happened all the time on the Trail, so A seems the most likely.
Answer:
A
Explanation:
A ) correct. he was born in the us , so he is a citizen
B) incorrect. Permanent resident of the us is when a person has been granted a " green card ", its a whole application process where docs have to be submitted.
C) Incorrect . Naturalized citizenship is granted after an approved application, documents are submitted and they complete a class. There are other requirements too.
D) He is a citizen
Answer:Por volta de 1990, a população afro-americana alcançou 30 milhões de pessoas, representando 12% da população americana. Atualmente, segundo fontes de 2005, há 39,9 milhões de afro-americanos, representando 13,8% da população estadunidense
Explanation: